Dashboard modifications

Change gutter and padding width for shapeshift plugin
Change sizes of default widgets
Dashboard widget modifications

Modify style of widget header
Set widget sizes (normal and maximized) in definitions in widget views
Modify shapeshift colspan and rowspan to be multiples of 50px with
padding and gutter 5px
Only save widget name, position and maximized status while saving
dashboard configuration
Fix bugs in resize and remove methods
Initialize and save maximimized status of widget correctly.
Dashboard modifications

Set widget-header as drag handle, so widgets can be dragged only by
their header sections.
Dashboard modifications

Change background color of widget to white from transparent, so that it
does not show the widget it is being dragged over.
Set move cursor for widget header, to indicate that it is draggable.
Set maxcpus to 8
Dashboard changes

Modify network util widget to show additional content on maximize
Set initial data to empty array.
Dashboard changes

Modify memory util widget font size to fit in widget
Remove code from disk util widget since it needs to be redone
Merge pull request #267 from sujeetsr/issue#110_dashboard_cpu

Issue#110 dashboard cpu